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Fetching package name from string input  - java

Posted on 2013-06-10
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743 Views
Last Modified: 2013-06-10
Hi:

I need to write a function which accepts a url as string. The function should do the following:

If the input is of the first url pattern, it should get the content after the last '/' in the url and before the .apk

If the input is of the second url pattern, it should get the content after the ?id= and before &feature


ie; in short, it should be returning package name from url. How can I accomplish this through java? Any help is appreciated.

PATTERN 1

http://abc.com/data/applications/net.feathertech.mediterraneanrecipes.apk
http://abc.com/data/applications/com.a731412505508e759b5b9717a.a36562546a.apk
http://abc.com/data/applications/com.petwisewebsites.mobile.apk

PATTERN 2

https://play.google.com/store/apps/details?id=com.apofiss.yinthecatlite&feature=personalized-recommendations#?t=W251bGwsMSwxLDIxMywiY29tLmFwb2Zpc3MueWludGhlY2F0bGl0ZSJd


https://play.google.com/store/apps/details?id=com.apofiss.pandadumplinglite&feature=more_from_developer#?t=W251bGwsMSwxLDEwMiwiY29tLmFwb2Zpc3MucGFuZGFkdW1wbGluZ2xpdGUiXQ..

https://play.google.com/store/apps/details?id=com.apofiss.chameleon&feature=more_from_developer#?t=W251bGwsMSwxLDEwMiwiY29tLmFwb2Zpc3MuY2hhbWVsZW9uIl0.
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Question by:Sreejith22
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7 Comments
 

Author Comment

by:Sreejith22
ID: 39235365
please let me know if any clarification regarding question is required
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LVL 12

Expert Comment

by:Sharon Seth
ID: 39235438
use regex
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Accepted Solution

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CEHJ earned 300 total points
ID: 39235457
 s = s.replaceAll(".*/([^&]+).*", "$1").replaceAll(".*=(.*)", "$1");

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The above is possibly OK, although it should be possible to do it more elegantly
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Author Comment

by:Sreejith22
ID: 39235458
any code snippet is much appreciated. I know regex is the possible way, but , sorry I do not have expertise using it.
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Author Comment

by:Sreejith22
ID: 39235472
Hi cehj,
 it does not exclude apk in first pattern
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LVL 86

Expert Comment

by:CEHJ
ID: 39235486
Well you didn't ask for that ;)

Quick and dirty - tack this on at the end

.replaceAll("\\.apk$", "");

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Expert Comment

by:CEHJ
ID: 39235611
:)
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